Submission #847114

#	Time	Username	Problem	Language	Result	Execution time	Memory
847114		Cookie	Restore Array (RMI19_restore)	C++14	100 / 100	332 ms	1304 KiB

restore

#include<bits/stdc++.h>
#define ll long long
#define vt vector
#define pb push_back
#define pii pair<int, int>
#define sz(v) (int)v.size()
#define fi first
#define se second
using namespace std;
const ll base = 107, mod = 1e9 + 7, mxv = 1e4 + 5, inf = 1e9;
const int mxn = 5e3 + 5, N = 3e6 + 5;
int n, m;
int dis[mxn + 1];
bool vis[mxn + 1];
struct th{
    int u, v, w;
};
vt<th>edge;
int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n >> m;
    for(int i = 0; i < m; i++){
        int l, r, k, v; cin >> l >> r >> k >> v;
        l++; r++;
        if(v == 1){
            //pref[r] - k >= pref[l - 1]
            k = (r - l + 1) - k + 1;
            edge.pb({r, l - 1, -k});
            //cout << r << " " << l - 1 << " " << -k << "\n";
        }else{
            k = (r - l + 1) - k;
            edge.pb({l - 1, r, k});
           // cout << l - 1 << " " << r << " " << k << "\n";
        }
    }
    for(int i = 1; i <= n; i++){
        edge.pb({i, i - 1, 0});
        edge.pb({i - 1, i, 1});
    }
    for(int i = 1; i <= n; i++)dis[i] = inf;
    dis[0] = 0;
    bool no = 0;
    for(int i = 1; i <= n + 1; i++){
        for(auto [u, v, w]: edge){
            if(dis[v] > dis[u] + w){
                dis[v] = dis[u] + w;
                if(i == n + 1)no = 1;
            }
        }
    }
    for(int i = 1; i <= n; i++){
        if(dis[i] == inf)dis[i] = dis[i - 1];
    }
    if(no)cout << -1 << "\n";
    else{
        for(int i = 1; i <= n; i++)cout << dis[i] - dis[i - 1] << " ";
    }
}

Compilation message (stderr)

restore.cpp: In function 'int main()':
restore.cpp:44:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   44 |         for(auto [u, v, w]: edge){
      |                  ^

• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 25 / 25
• Subtask 4: 55 / 55